Home / 43,511.11-65,234.74-13,911.91

Finding the Fourth Proportional to 43,511.11, 65,234.74 and 13,911.91

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Solution

The fourth proportional to 43,511.11, 65,234.74 and 13,911.91 is: 20,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,511.11 : 65,234.74 = 13,911.91 : x
  2. Step 2: Convert to fraction form
    43,511.11/65,234.74 = 13,911.91/x
  3. Step 3: Cross multiply
    43,511.11x = 65,234.74 × 13,911.91
  4. Step 4: Simplify right side
    43,511.11x = 907,539,436.02
  5. Step 5: Solve for x
    x = 907,539,436.02/43,511.11
  6. Step 6: Final answer
    x = 20,857.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.